26612729945 has 16 divisors (see below), whose sum is σ = 33441558912. Its totient is φ = 20292539520.

The previous prime is 26612729903. The next prime is 26612729987. The reversal of 26612729945 is 54992721662.

It is an interprime number because it is at equal distance from previous prime (26612729903) and next prime (26612729987).

It is not a de Polignac number, because 26612729945 - 2¹⁰ = 26612728921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376316 + ... + 441405.

It is an arithmetic number, because the mean of its divisors is an integer number (2090097432).

Almost surely, 2^26612729945 is an apocalyptic number.

It is an amenable number.

26612729945 is a deficient number, since it is larger than the sum of its proper divisors (6828828967).

26612729945 is a wasteful number, since it uses less digits than its factorization.

26612729945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818032.

The product of its digits is 3265920, while the sum is 53.

The spelling of 26612729945 in words is "twenty-six billion, six hundred twelve million, seven hundred twenty-nine thousand, nine hundred forty-five".